CBS

Season 12: Episode 14 - Seeing Red

Seeing Red: ­We meet the new CSI, played by Elisabeth Shue in this episode. She is a former work colleague of DB Russell's from the Seattle days. She is a blood spatter specialist, and very outspoken CSI. Russel goes to her for advise on a case he is now covering. She is reluctant to help out due to something that happened in the past -- something we will find out in the next few episodes. She clearly is a pistol, and knows blood spatter better than anyone else. She works with Greg in this episode to figure out the bones of this case. A man killed his ex girlfriend and they have the wrong guy for it. In the end we find that the murderer does not remember that he went into a rage and killed his ex girlfriend because he had been shot in the head, and had memory loss and black outs.